Varying the voltage of a carrier or a direct current in order to transmit analog or digital data. Amplitude modulation (AM) is the oldest method of transmitting human voice electronically. In an ...

Laser developer Omicron Laserage, based in Rodgau, Germany, announced at last week's Optatec show in Frankfurt that it has created "what no other manufacturer has achieved". Omicron's new diode laser, ...